Structural modification of gallium lanthanum sulfide glass induced by ultrafast laser inscription

Diener R, Tabacchi G, Nolte S, Minardi S (2017)

Publication Type: Conference contribution

Publication year: 2017

Journal

Proceedings of SPIE Society of Photo-optical Instrumentation Engineers (SPIE)

Publisher: SPIE

Book Volume: 10092

Conference Proceedings Title: Proceedings of SPIE - The International Society for Optical Engineering

Event location: San Francisco, CA, USA

ISBN: 9781510606258

DOI: 10.1117/12.2250591

Abstract

We present a preliminary experimental chemical-physical characterisation of the structural modification of Gallium Lanthanum Sulfide (GLS) glass occurring during ultrafast laser inscription of waveguides in thermal regime. Our measurements with a micro-Raman spectrograph confirmed previous reports of negligible chemical modification of the irradiated glass. Additionally, the observed onset of significant long-range stress patterns surrounding the irradiated regions indicate that GLS is subject to an irradiation-induced densification of the glass network. We discuss the consequences of these observations for the amelioration of the laser inscription techniques in chalcogenide glasses and, potentially, for the understanding of their microscopic structure.

Involved external institutions

Friedrich-Schiller-Universität Jena DE Germany (DE) University of Insubria / Università degli Studi dell'Insubria IT Italy (IT)

How to cite

APA:

Diener, R., Tabacchi, G., Nolte, S., & Minardi, S. (2017). Structural modification of gallium lanthanum sulfide glass induced by ultrafast laser inscription. In Udo Klotzbach, Rainer Kling, Kunihiko Washio (Eds.), Proceedings of SPIE - The International Society for Optical Engineering. San Francisco, CA, USA: SPIE.

MLA:

Diener, Romina, et al. "Structural modification of gallium lanthanum sulfide glass induced by ultrafast laser inscription." Proceedings of the Laser-Based Micro- and Nanoprocessing XI 2017, San Francisco, CA, USA Ed. Udo Klotzbach, Rainer Kling, Kunihiko Washio, SPIE, 2017.

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